Your scrollbar to choose user is quite nice when you have few users, but is not suited to a list of dozens of items. In addition, according to whom you are selling a product, the price isn't supposed to be the same. So how about selecting the user first, in order to improve user experience.
This option would allow you to:
choose any action regarding the person and reducing the risk of errors,
display the product prices according to the user's status,
display the user's account before selecting products, hence knowing before typing the basket if the user has enough money on his/her account.
Hello,
Your scrollbar to choose user is quite nice when you have few users, but is not suited to a list of dozens of items. In addition, according to whom you are selling a product, the price isn't supposed to be the same. So how about selecting the user first, in order to improve user experience.
This option would allow you to: